Here are some clips with the FatDrive into my plexi with my Tyler Telecaster and Tokai LP.
The FatDrive works equally well as overdrive as it does as booster, it can seriously kick your amps ass. I recorded 3 clips with each guitar,1st one is for reference and without the FatDrive engaged. The 2nd clip has all controls on 12:00 on the pedal, the last clip has Level and Treble at about 1:00 and the Gain at 9:00.